baber/WOPTO huggingface dataset:
Patent JP-H03130344-A (JP)
Title: Spheroidal graphite cast iron and its production
Inventor: OBATA FUMIO
IPC: C21C1/08
Filed: 1990-06-21
Abstract: PURPOSE:To stably produce spheroidal graphite cast iron having superior mechanical strength by preparing spheroidal graphite cast iron having a specific composition in which S content and the number of graphite grains are controlled, respectively. CONSTITUTION:Spheroidal graphite cast iron which has a composition consisting of, by weight ratio, 3.0-4.0% C, 1.8-5.0% Si, <=1.0% Mn, <=0.20% P, 0.016-0.030% S, 0.02-0.06% Mg, 0.010-0.04% lanthanide-seriese rare earth element (Ce, Nd, Pr, or mixtures thereof, etc.), and the balance Fe with inevitable impurities and in which the number of graphite grains having >=2mu grain size in the case of 3mm as-cast wall thickness is regulated to >=1700 pieces/mm<2> is prepared. By this method, the spheroidal graphite cast iron increased in the number of graphite grains per unit area and having superior mechanical strength can be obtained.
Patent JP-H0840612-A (JP)
Title: Device and method for rotary bonding
Inventor: TOOMASU DEIBUITSUDO EIRAATO
IPC: B29C65/08
Filed: 1995-06-29
Abstract: PURPOSE: To ensure the bonding performance and robustness of a web while maintaining a fixed force between rolls by matching and supporting an anvil axis continuously so that an anvil surface can maintain the parallel relationship with the bonding surface. CONSTITUTION: Substrate webs 12 and 14 move continuously along a substrate passage 16 in the arrow mark 18 direction relating to it. A device 10 has a rotatable bonding roll 20 arranged adjacent to the substrate webs 12 and 14. The bonding roll 20 rotates around a bonding axis in the arrow mark 26 direction relating to this. The bonding roll 20 has the bonding surface of an outer periphery and the substrate webs 12, 14 move thereon. A rotatable anvil roll 40 having the outer periphery anvil surface and anvil width is arranged adjacent to the bonding roll 20. This anvil roll 40 is supported rotatably by a pivot support means 50 push-presses and bonds the substrate webs 12, 14, while matching the anvil axis continuously and keeping the anvil surface in the parallel relationship with the bonding surface.
Patent JP-H04348925-A (JP)
Title: Motor driven injection molder
Inventor: ISHIKAWA TAKASHI
IPC: B29C45/76
Filed: 1991-06-10
Abstract: PURPOSE:To execute the control of injection, back pressure and screw position with one servo motor equipped with a position sensor. CONSTITUTION:A servo motor and a screw 1 are combined with each other through mechanisms 7 and 9, with which rotational motion is converted into rectilineal motion. At injection, injection is performed by driving the servo motor in order to advance the screw 1. Further, at metering, back pressure is given by controlling the output torque of the servo motor. Furthermore, the positional controlling of the screw is performed by detecting the position of the screw with a position sensor mounted to the servo motor. Thus, the controllings of injection, back pressure and screw position can be executed with one servo motor equipped with the position sensor.
Patent JP-S5953564-A (JP)
Title: Jet ink composition
Inventor: TOYODA TSUNEHIKO
IPC: C09D11/00
Filed: 1982-09-20
Abstract: PURPOSE:To provide a water-based jet ink composition usable for a long period without causing the clogging of the nozzle, and giving a record having excellent light resistance, by adding isatoic acid anhydride, nicotinic acid amide and/or p-aminosalicyclic acid to a jet ink composition. CONSTITUTION:A water-based jet ink composition composed mainly of a water- soluble dye, a wetting agent and water, is further added with preferably 0.1- 5wt% of one or more compounds selected from isatoic acid anhydride, nicotinic acid amide and p-aminosalicylic acid, and if necessary, preferably 0.1-5wt% of a water-soluble quencher (preferably potassium iodide, potassium bromide, copper sulfate, cobalt sulfate, or potassium thiocyanate).
Patent JP-S60110611-A (JP)
Inventor: FURANKO AIUORA
IPC: B65B11/22
Filed: 1984-08-02
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-2000353708-A (JP)
Title: Semiconductor device and manufacture thereof
Inventor: SAMOTO NORIHIKO
IPC: H01L21/338
Filed: 1999-06-10
Abstract: PROBLEM TO BE SOLVED: To obtain a semiconductor device, with which the prevention of lowering of the yield of production and the improvement of high frequency characteristic can be compatibly accomplished when a microscopic gate electrode is formed, and to obtain a manufacturing method of the semiconductor device. SOLUTION: In a T-shaped cross-sectional gate electrode on which gate resistance is reduced, an insulating film 13, which is formed between a gate electrode 11 and a semiconductor substrate 10 for the purpose of retaining the gate electrode 11, is partially removed in the width direction (longitudinal direction). In the structure, as the gate electrode 11 is retained, and at the same time, an insulating film 12 is partially removed, gate parasitic capacitance can be decreased without lowering the yield of production, when the gate electrode is formed, and high frequency characteristic can also be improved.
Patent JP-2000353629-A (JP)
Title: Leakage transformer
Inventor: MATSUZAWA YASUO
IPC: H01F38/08
Filed: 1999-06-10
Abstract: PROBLEM TO BE SOLVED: To eliminate adherents caused by charging of electrodes by adding pass cores at the midpoint of the main core between input and output windings individually mounted on the main core and magnetically joining them to each other. SOLUTION: A main core 11 is composed of a pair of cut cores 15, shaped like tracks exhibiting a B-H characteristic curve with a wide linear part. A pair of pass cores are composed of laminated sheet cores, transversely placed respectively between input and output windings 12 and 13 and on the front face and on the rear face of the midpoint of the cut cores 15, and magnetically joined to each other by making appropriate points on the cutting plane of the lamination into contact with edges of wound layers of the cut cores 15.  The output waveform of current flowing from the output winding 13 exhibiting small displacements to a degree such that the wave crest is somewhat flat in comparison with the input waveform of a sinusoidal wave of the current flowing into the input winding 12 and is almost symmetric with respect to a horizontal line and the output contains nearly no direct current portion. Accordingly, when the transformer is used for a destaticizer for example, even if the electrodes are charged by the direct current portion remaining in the output, no substance adheres to the electrodes.
Patent JP-S6225535-A (JP)
Title: Test method for duplex loop data link system
Inventor: HASHIMOTO MASATO
Filed: 1985-07-26
Abstract: PURPOSE:To conduct the test of an entire system while data link is continued by using one of link units to be tested as a master station, using the others as slave stations and sending the test data of a prescribed pattern from the master station to the slave station. CONSTITUTION:In conducting the test, link units, e.g., 103, 104 to be teste are disconnected at first from a duplex data link system. Then cables 11, 12 are connected by a receiving means R, a transmitting means D and changeover means 103, 104 in link units 102, 105 at the end of disconnection to continue the data link. On the other hand, the receiving means R of the 1st set 101 of the unit 103 and the transmitting means D of the 2nd set 102 of the unit 104 are connected together, a test data is set from the means D to collate the data with the reception data of the receiving means R thereby deciding the presence of an error. Then changeover means 103, 104 are switched and the said test is similarly conducted for the transmitting means D of the 1st set 101 of the unit 103 and the receiving means R of the 2nd set 102 of the unit 104.
Patent JP-S6056616-A (JP)
Title: Retainer device for shock absorber
Inventor: SATOU HIROKI
IPC: F16F13/14
Filed: 1983-09-05
Abstract: PURPOSE:To improve swirl performance of a vehicle in a rolling region, by a method wherein the mounting position of the upper end of a shock absorber is moved through deformation of a suspension bush for an upper supporter by means of a fluid pressure. CONSTITUTION:An resilient member 18 of a suspension bush 19 is divided into an inner and an outer side to form two hollow parts 29 and 30, and incorporates an inner hollow bag body 31 and an outer hollow bag body 32 which are made of expandable material such as rubber. Each of pressure oil hoses 35 connected to each of the hollow bag bodies 31 and 32 through a mouth ring 33 and a hose clamp 34 which are attached to a retainer plate 17 of the suspension bush 19. When outputs from a car speed sensor, which changes an output according to a car speed, and a steering sensor, which changes an output depending upon the rotary angle of a steering wheel, correspond to the roll region of a car, a pressure fluid is supplied to the outer hollow bag body 32, and a pressure fluid in the inner hollow bad body 31 is returned to a reservoir tank to bring it into a negative camber.
Patent JP-H0330581-A (JP)
Title: Semiconductor device and video camera unit using the same and its manufacture
Inventor: NAITOU TAKAMASA
IPC: H04N5/359
Filed: 1989-06-28
Abstract: PURPOSE:To adjust the back focus of a lens by separating a video camera unit into a holder to store the lens and a base to carry a solid state image pickup chip, and combining the holder and the base by making the distance between the holder and the base variable. CONSTITUTION:The holder is divided into two parts of a holder 1 and the holder 2, and four pieces of the lenses L1 to L4 are stored in the holder 1, and a solid state image pickup device 6 carrying the solid state image pickup chip 64 is stored in the holder 2. A stripe-shaped black and white pattern is set at the prescribed distance, and it is image-picked up by the video camera unit, and an obtained electric signal is inputted to a holder drive system to adjust the distance between the holder 1 and the holder 2, and a position at which the high band component of the signal becomes maximum is determined. Afterwards, the ultraviolet-ray-hardening resin of quanity enough to fix the groove 400 of the holder 1 and the protrusion 401 of the holder 2 is injected, and the result is irradiated with the ultraviolet ray of prescribed quanity, they are bonded and fixed instantaneously.
Patent JP-H06244509-A (JP)
Title: Semiconductor optical element
Inventor: IRIKAWA MASANORI
IPC: H01S5/00
Filed: 1993-06-08
Abstract: PURPOSE:To provide a blue semiconductor optical element oscillating at a high temperature higher than a room temperature. CONSTITUTION:In a semiconductor optical element containing either Zn or Cd as group II element, composed of a compound semiconductor containing either S or Se or Te as group VI element and having a double-heterostructure containing an active layer 4 and clad layer 6, a part of the clad layer 6 or optical confinement layer 5 is provided with a multiple quantum barrier structure 8 using a strain superlattice layer and having the function of reflecting an incident carrier as wave motion and in the manner of entering a phase where an incident wave and reflected wave intensify each other.
Patent JP-S5869797-A (JP)
Inventor: KURAUSU MIYUNTSUERU
IPC: F42B3/10
Filed: 1982-09-22
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-S6225707-A (JP)
Title: Fiber polarizer
Inventor: OBO SHIGERU
IPC: G02B6/10
Filed: 1985-07-26
Abstract: PURPOSE:To make mass production of an inline fiber type polarizer with high precision by using a fiber holding block made of silicon in order to polish the side face of an optical fiber. CONSTITUTION:An optical fiber 20 is held to the fiber holding block 10 made of silicon and a fiber clad 21 near the front layer of a fiber core 22 is polished for each of the holding block 10 so that only the top surface part is removed. A thin CaF2 film layer 40 and a thin aluminum metallic film 30 are formed on the polished surface of the optical fiber 20 by sputtering. The thin film layer 40 is thereby improved in the extinction ratio of a polarizer. Anisotropic etching of silicon is used to manufacture the holding block 10. More specifically, the etching progresses at about 54.74 deg. angle with the substrate surface in the direction parallel with or perpendicular to the <100> plane in the stage of etching the silicon wafer having the surface on the <100> plane by an alkaline soln. A fiber holding groove is precisely made to an arc shape by using such phenomenon. The mass production of the polarizer at a low cost with high precision is thus made possible.
Patent JP-H06347157-A (JP)
Title: Cooling storage box
Inventor: SEKIGUCHI TAKASHI
IPC: F25D17/08
Filed: 1993-06-08
Abstract: PURPOSE:To effectively prevent the theft of articles, which is generated especially for a cooling storage box being set outdoors, from happening. CONSTITUTION:The opening of a storage chamber 6 which is constituted in an heat insulating box body 4 is openably closed by two sheets of byparting type heat insulating doors 2, 3. Both heat insulating doors 2, 3 are connected to each other, and at the same time, a cylinder lock 14 which is unlocked from the outside is provided. Then, a fixing device 21 which fixes one 3 of the heat insulating doors to the heat insulating box body 4 from the storage chamber 6 side is provided. Under a condition in which the cylinder lock 4 is unlocked, the other heat insulating door 2 becomes openable. Under a condition in which the other heat insulating door 2 is open, the fixing device 21 becomes releasable.
Patent JP-S5628375-A (JP)
Title: Automatic water supply valve by pilot operation
Inventor: KOHAMA TERUICHI
IPC: F16K31/42
Filed: 1979-12-17
Abstract: PURPOSE: To prevent impact by water impingement, etc. at the time of closing a water supply valve, by conducting pressure restoration of a diaphragm chamber at a slow speed.  
     CONSTITUTION: When a water level in a water tank dropped and a solenoid unit 56 becomes in "Valve Open" position, pressure in a diaphragm chamber 11 drops. This is because a flow rate to be discharged from a valve body 58 in "Open" position through a flow passage 51 is larger than a volume of control flow reaching the diaphragm chamber 11 from the main valve inlet 2 passing through a filter 20, a narrow water supply passage 53, a fluid resistance body 27, a narrow pressure supply passage 55 and a water supply pipe. And then, by a difference in pressure between top and bottom sides of the diaphragm 10, the diaphragm 10 is finally reversed to open a valve seat gate 6, and water flows from the inlet 2 into the water tank through the valve seat gate 6 and an oultet 5, and water supply to the tank is thus started. When the water level rose to open the solenoid unit 56 in this manner, the diaphragm 10 slowly returns to its initial "Close" position by the motion of the resistor 27 without giving rise to the water impingement. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-S648504-A (JP)
Title: Magnetic head
Inventor: YAMAKI HIROSHI
IPC: G11B5/127
Filed: 1987-06-30
Abstract: PURPOSE:To improve the recording/reproducing efficiency by deviating the opposed position of a magnetic layer and a nonconductive layer in the broadwise direction between both magnetic core halves so as to increase the magnetic reluctance of the operating gap. CONSTITUTION:Nonconductive layers 13, 15 arranged among magnetic layers 11, 12, 14 are arranged out opposed between both magnetic core halves while being deviate in the broadwise direction. Moreover, the magnetic substance layers 11, 12, 14 and the nonconductive layers 13, 15 are arranged in this way, the thickness of both the magnetic core halves 1, 2 is the same and both side ridges are made coincident. Thus, the magnetic reluctance at the operating gap is increased and the leakage magnetic flux to an external (medium) part is increased at recording so as to improve the recording efficiency and the magnetic flux led in the core at reproduction is increased thereby increasing the reproduced output.
Patent JP-S5864866-A (JP)
Title: Facsimile communication system
Inventor: NANBU OSAMU
IPC: H04N1/32
Filed: 1981-10-15
Abstract: PURPOSE:To make the communication efficient and to protect secrecy, by automatically abolishing picture information at the reception side through the instruction of abolishment, when the picture information is desired to be abolished from the transmission side. CONSTITUTION:A picture signal of an original from a transmitter 1 is applied to a receiver 3 via an exchange or a repeater 2. A microprocessor system 13 of the transmitter 1 receives a message confirming signal and a reception function instructing signal from the receiver 3, and when there is an instruction to abolish the picture information of the original transmitted at present from a transmission operator before the reception, a reception mode instructing signal including  the instruction of abolishment is transmitted. The processor system 13 of the receiver 13 abolishes the corresponding picture information through the reception of the reception mode instructing signal including the abolishing instruction, and returns the reception function offer signal including the abolishment of the picture information already received.
Patent JP-S6054294-A (JP)
Title: Cored wire for build-up by welding
Inventor: HIRAISHI HISASHI
IPC: B23K35/32
Filed: 1983-09-05
Abstract: PURPOSE:To provide a cored wire which can form a wear resistant build-up layer having secure bond to a base metal by filling ceramic powder or a powder mixture composed of ceramics and metal into a metallic tube. CONSTITUTION:A cored wire for build-up by welding is formed by filling ceramic powder such as chromium carbide or a powder mixture composed of ceramic powder and stainless steel. etc. into a metallic tube. The sectional area ratio of the hole in the tube with respect to the sectional area of such cored wire is made about >=30% and the filling rate of the powder is made preferably >=50%. The same material as the material of the metallic tube is usually used for the metallic powder to be mixed with the ceramic powder. The build-up layer which consists of the composite structure dispersed uniformly with ceramic particles in the metallic matrix and is free from weld crack, etc. is formed by such composite wire.
Patent JP-S6228426-A (JP)
Inventor: MATSUDA KONOSUKE
IPC: D02G3/36
Filed: 1985-07-25
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-H0330359-A (JP)
Title: Package for semiconductor
Inventor: USUKI TOSHIO
IPC: H01L23/12
Filed: 1989-06-27
Abstract: PURPOSE:To dissipate heat excellently when a semiconductor chip is operated, and to improve performance by using a recessed metallic member as a semiconductor-element mounting section in ceramics and directly bringing the metallic member into contact with the outer lead of a rear. CONSTITUTION:A chip-mounting and wire-connecting section space is followed out to ceramics 14, and a recessed metallic member 16 having excellent heat- dissipating properties and electrical conductivity such as copper is bonded directly with an outer lead 10 by silver solder, etc., in the hollowed out section. Consequently, a semiconductor chip is bonded with the underside of the recessed metallic member 16, wires connected to the outer lead 10 are cemented to the recessed metallic member 16, and the semiconductor chip is mounted to the recessed metallic member 16, thus forming the wire length of all wires in short size. Accordingly, heat generation at the time of the operation of the semiconductor chip is dissipated through the metallic member, and the stable operation of an element is attained, thus preventing the deterioration of high-frequency performance.
Patent JP-S5789332-A (JP)
Title: Tone squelch circuit
Inventor: NISHI YUUJI
IPC: H04B1/10
Filed: 1980-11-22
Abstract: PURPOSE:To make the operation high-speed and stable, by providing a gain control circuit, a band pass filter, a detecting circuit, and a switch circuit in series and by controlling the gain of the gain control circuit by the output of this filter. CONSTITUTION:A gain control circuit GC is provided in the input side of a band pass filter BPF, and the gain of the gain control circuit GC is controlled by the output obtained by rectifying and smoothing the output of the band pass filter BPF by a detecting circuit REC2. Thus, the output of the band pass filter BPF is always held in a constant level. However, it means a stationary level, and the delay of an automatic level control loop is utilized positively in the rise part to make the output large.
Patent JP-H1012917-A (JP)
Title: Light emitting diode and fabrication thereof
Inventor: ISHIGURO SHIGEYUKI
IPC: H01L33/46
Filed: 1996-06-25
Abstract: PROBLEM TO BE SOLVED: To prevent the emission output from lowering in high current region by making thin the epitaxial layer and to protect a wafer in production process against cracking by reinforcing the thinned epitaxial layer mechanically. SOLUTION: A p-type AlGaAs window layer 3, a p-type AlGaAs active layer 4 and an n-type AlGaAs clad layer are grown sequentially on a GaAs substrate 8 to form an epitaxial wafer 13 having a p-n junction of double hetrostructure. In this regard, the clad layer 5 is made thin and the total thickness of an epitaxial layer 12 is limited within 100μm. After a partial electrode 1 and a reflective layer 2 are formed on the clad layer 5 of the wafer 13, a metal plate 7 is pasted onto the partial electrode 1 and the reflective layer 2 through an eutectic allay 6 of Au-Sn. After the eater 13 is reinforced by pasting the metal plate 7, the Gaps substrate 8 is removed by polishing.
Patent JP-S5866033-A (JP)
Title: Knocking detecting apparatus for internal combustion engine
Inventor: OZAKI MAKOTO
IPC: G01L23/22
Filed: 1981-10-14
Abstract: PURPOSE:To avoid reduction in output from a detector due to air bubles and to accelerate restoring by an apparatus wherein a vibrator holding part is so formed that the pressure receiving surface of a vibrator adapted to sense pressure pulsation is located at a position where engine cooling water has a large running speed in its flow passage. CONSTITUTION:A vibrator 5 is pulsated in response to pressure pulsation generated in cooling water within a water jacket due to knocking in a cylinder 1. Correspondingly voltage is generated from a piezoelectric substance 6 and this voltage signal is output from an output terminal 8. The length of a holding part 9b is so determined that a pressure receiving surface 5a of the vibrator is positioned in the B part where cooling water has a large running speed. When air bubbles attach on the pressure receiving surface 5a of the vibrator 5, output from the detector is lowered. But as temperature of cooling water is increased, a diameter of each air bubble attached is enlarged so that the air bubbles depart from the pressure receiving surface 5a by virtue of a large running speed of cooling water.